General stainless steel is generally not resistant to chemical medium corrosion, while acid-resistant steel generally possesses corrosion resistance. The term "stainless steel" does not simply refer to one type of stainless steel, but indicates over a hundred industrial stainless steel grades, each with excellent performance in its specific application field. The key to success is first to determine the purpose, and then to identify the correct steel grade. In the field of construction and structural applications, there are usually only six types of steel. They all contain 17-22% chromium, with better grades also containing nickel. Adding molybdenum can further...EnhanceAtmospheric corrosion resistance, particularly to chloride-containing atmosphere corrosion.
Stainless steel is a shorthand for acid-resistant steel, referring to steel grades that are resistant to air, steam, water, and other mild corrosive media or have inherent corrosion resistance. Conversely, steel that can withstand corrosion from chemical media (acids, alkalis, salts, etc.) is called acid-resistant steel. Due to their differences in chemical composition, the corrosion resistance of the two varies; general stainless steel is typically not resistant to chemical media corrosion, whereas acid-resistant steel generally possesses corrosion resistance.